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Pulsar timing measurements can be used to detect gravitational radiation from massive black hole binaries. The ~106d quasi-periodic flux variations in Sagittarius A* at radio wavelengths reported by Zhao, Bower, & Goss (2001) may be due to…

Astrophysics · Physics 2009-11-06 Andrea N. Lommen , Donald C. Backer

The first gravitational wave detections of mergers between black holes and neutron stars represent a remarkable new regime of high-energy transient astrophysics. The signals observed with LIGO-Virgo detectors come from mergers of extreme…

Solar and Stellar Astrophysics · Physics 2018-08-15 Matthias U. Kruckow , Thomas M. Tauris , Norbert Langer , Michael Kramer , Robert G. Izzard

Infrared (IR) luminosity of galaxies originating from dust emission can be used as an indicator of the star formation rate (SFR). Inoue et al. (2000, IHK) have derived a formula for the conversion from IR luminosity to SFR by using the…

Astrophysics · Physics 2009-11-10 Hiroyuki Hirashita , Veronique Buat , Akio K. Inoue

The formation rate of a close binary consisting of a super-massive black hole and a compact object (presumably a white dwarf) in galactic cusps is calculated with help of the so-called loss cone approximation. For a power low cusp of radius…

Astrophysics · Physics 2009-11-07 P. B. Ivanov

The coalescence of massive black hole binaries (BHBs) in galactic mergers is the primary source of gravitational waves (GWs) at low frequencies. Current estimates of GW detection rates for the Laser Interferometer Space Antenna and the…

Astrophysics of Galaxies · Physics 2020-07-08 Imran Nasim , Alessia Gualandris , Justin Read , Walter Dehnen , Maxime Delorme , Fabio Antonini

Gravitational wave-forms from coalescences of binary black hole systems and binary neutron star systems with low tidal effects can hardly be distinguished if the two systems have similar masses. In the absence of discriminating power based…

General Relativity and Quantum Cosmology · Physics 2022-04-13 J. -F. Coupechoux , A. Arbey , R. Chierici , H. Hansen , J. Margueron , V. Sordini

We use empirical star formation histories (SFHs), measured from HST-based resolved star color-magnitude diagrams, as input into population synthesis codes to model the broadband spectral energy distributions (SEDs) of ~50 nearby dwarf…

The star formation rate - stellar mass relation (SFR-M*) and its evolution (i.e., the SFR main sequence) describes the growth rate of galaxies of a given stellar mass and at a given redshift. Assuming that present-day star-forming galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-17 Samuel N. Leitner

The observation of gravitational wave signals from binary black hole mergers has established the field of gravitational wave astronomy. It is expected that future networks of gravitational wave detectors will possess great potential in…

General Relativity and Quantum Cosmology · Physics 2018-06-06 Joseph Mills , Vaibhav Tiwari , Stephen Fairhurst

The star formation rate (SFR) and black hole accretion rate (BHAR) functions are measured to be proportional to each other at z < ~3. This close correspondence between SF and BHA would naturally yield a BH mass-galaxy mass correlation,…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 X. Z. Zheng , E. F. Bell , R. S. Somerville , H. -W. Rix , K. Jahnke , F. Fontanot , G. H. Rieke , D. Schiminovich , K. Meisenheimer

The recent discovery of GW150914, the binary black hole merger detected by Advanced LIGO, has the potential to revolutionize observational astrophysics. But to fully utilize this new window into the universe, we must compare these new…

High Energy Astrophysical Phenomena · Physics 2016-04-20 Carl L. Rodriguez , Sourav Chatterjee , Frederic A. Rasio

Massive merging black holes will be the primary sources of powerful gravitational waves at low frequency, and will permit to test general relativity with candidate galaxies close to a binary black hole merger. In this paper we identify the…

Astrophysics · Physics 2009-06-23 László Á. Gergely , Peter L. Biermann

We present an analytic model to describe the supermassive black hole binary (SMBHB) merger rate in the Universe with astrophysical observables: galaxy stellar mass function, pair fraction, merger timescale and black hole - host galaxy…

Astrophysics of Galaxies · Physics 2019-07-25 Siyuan Chen , Alberto Sesana , Christopher J. Conselice

We develop an empirical approach to infer the star formation rate in dark matter halos from the galaxy stellar mass function (SMF) at different redshifts and the local cluster galaxy luminosity function (CGLF), which has a steeper faint end…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Zhankui Lu , Houjun Mo , Yu Lu , Neal Katz , Martin D. Weinberg , Frank C. van den Bosch , Xiaohu Yang

The termination in the white dwarf luminosity function is a standard diagnostic tool for measuring the total age of nearby stellar populations. In this paper, an algorithm is presented for inverting the full white dwarf luminosity function…

Astrophysics of Galaxies · Physics 2015-06-16 Nicholas Rowell

Using a model for self-regulated growth of black holes (BHs) in mergers involving gas-rich galaxies, we study the relationship between quasars and the population of merging galaxies and predict the merger-induced star formation rate density…

Gravitational waves (GWs) from massive black hole (MBH) mergers will provide a novel way to probe the high-redshift universe and are key to understanding galactic dynamics and evolution. In this work, we analyze MBH mergers, their GW…

High Energy Astrophysical Phenomena · Physics 2025-11-19 Sourabh Magare , Abhinav Roy , Shasvath J. Kapadia , Nishikanta Khandai , R. Srianand

We present multi-wavelength global star formation rate (SFR) estimates for 326 galaxies from the Star Formation Reference Survey (SFRS) in order to determine the mutual scatter and range of validity of different indicators. The widely used…

Astrophysics of Galaxies · Physics 2018-11-07 Smriti Mahajan , M. L. N. Ashby , S. P. Willner , P. Barmby , G. G. Fazio , A. Maragkoudakis , S. Raychaudhury , A. Zezas

The first directly detected gravitational waves (GW 150914) were emitted by two coalescing black holes (BHs) with masses of ~36Msun and ~29Msun. Several scenarios have been proposed to put this detection into an astrophysical context. The…

Solar and Stellar Astrophysics · Physics 2018-01-24 R. Hainich , L. M. Oskinova , T. Shenar , P. Marchant , J. J. Eldridge , A. A. C. Sander , W. -R. Hamann , N. Langer , H. Todt

Stellar-mass binary black hole mergers are poised to represent the majority of gravitational-wave (GW) observations by Advanced LIGO and Virgo. Probing their origin will be difficult due to the expected lack of electromagnetic emission and…

High Energy Astrophysical Phenomena · Physics 2018-02-07 I. Bartos , Z. Haiman , Z. Marka , B. D. Metzger , N. C. Stone , S. Marka
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